It would be good to have option to view last execution time of project:
We use radiator view(s) for monitor projects, which are usually triggered by other projects. We have to react if those are failing, but it is also usually sign of a problem if projects are not triggered for a long time.
Good solution would be to show "last executed" info in radiator view and move oldest projects in the top of passed projects list. Great solution would be to have a option which would allow defining "expiration date" for project. And when reached expiration date project would turn first yellow, then red. Or just simply state "Expired!" information or user defined status.